A 65-year-old man surnamed Luo, a local resident from Gaopo township, Yongding County, Longyan City, showed symptoms of repeated coughing, low fever and a tight chest on April 18. He tested positive for the H7N9 virus at 11 a.m. on Friday by the Chinese Center for Disease Control and Prevention.

Thirty-seven people who have been in close contact with Luo have not shown any abnormal symptoms so far.

Also, three men, aged 36, 49 and 60, from three different cities, were confirmed to have caught H7N9 bird flu in Jiangsu Province, according to a statement issued by the provincial health department.

Two of them were in serious condition, said the statement.

In neighboring Zhejiang Province, a 38-year-old farmer surnamed Li was confirmed to have contracted the H7N9 bird flu virus. Li, who is also in serious condition, is receiving treatment in hospital.

In Jiangxi Province, health authorities confirmed the province's second H7N9 bird flu case, a 76-year-old woman surnamed Xiong. She is in critical condition, according to a Jiangxi provincial health department statement.

The case has no family or epidemiological connection with the province's first case, a 69-year-old man also surnamed Xiong.

Health experts found some of the chicken and ducks the woman, a farmer, raised had died, which may be connected with her infection of the virus.